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Fluorine modified boron carbonitride photocatalytic material and application thereof to efficient reduction of carbon dioxide

A photocatalytic material, technology of fluorine-modified boron, applied in the application field of fluorine-modified boron-carbon-nitrogen photocatalyst material, efficient reduction of carbon dioxide, can solve the problems of inefficiency, environmental pollution, high cost, etc., and achieve low cost , mechanical wear resistance, high efficiency effect

Active Publication Date: 2018-11-23
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a fluorine-modified boron-carbon-nitrogen photocatalytic material and its application in the efficient reduction of carbon dioxide, which can solve the inefficiency, high cost and Environmental pollution and other issues

Method used

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  • Fluorine modified boron carbonitride photocatalytic material and application thereof to efficient reduction of carbon dioxide
  • Fluorine modified boron carbonitride photocatalytic material and application thereof to efficient reduction of carbon dioxide
  • Fluorine modified boron carbonitride photocatalytic material and application thereof to efficient reduction of carbon dioxide

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Effect test

Embodiment 1

[0025] Completely dissolve 2g of boron oxide, 4g of urea, and 0.6g of glucose in 40-50ml of deionized water. After evaporating all the water at 75°C under normal pressure, place the resulting mixture in a corundum porcelain boat, and then place it in In a horizontal high-temperature tube furnace, the temperature was raised to 1250 °C at a rate of 5 °C / min in an ammonia atmosphere, and then kept for 5 h. After the sample was taken out, it was washed with 0.1 mol / L dilute hydrochloric acid, centrifuged, and dried to obtain Graphite phase boron carbon nitrogen powder; mix potassium fluoride with the obtained boron carbon nitrogen powder at a mass ratio of 0.4:1, grind them evenly, place them in a muffle furnace, and heat up to 400°C at a rate of 5°C / min in an air atmosphere , and then keep it warm for 3 h; after cooling to room temperature, take out the sample, wash it thoroughly with deionized water, filter it with suction, and dry it to obtain the fluorine-modified boron carbon ...

Embodiment 2

[0034] Completely dissolve 2g of boron oxide, 4g of urea, and 0.6g of glucose in 40-50ml of deionized water. After evaporating all the water at 75°C under normal pressure, place the resulting mixture in a corundum porcelain boat, and then place it in In a horizontal high-temperature tube furnace, the temperature was raised to 1250 °C at a rate of 5 °C / min in an ammonia atmosphere, and then kept for 5 h. After the sample was taken out, it was washed with 0.1 mol / L dilute hydrochloric acid, centrifuged, and dried to obtain Graphite phase boron carbon nitrogen powder; mix potassium fluoride with the obtained boron carbon nitrogen powder at a mass ratio of 0.2:1, grind them evenly, place them in a muffle furnace, and heat up to 400°C at a rate of 5°C / min in an air atmosphere , and then keep it warm for 3 h; after cooling to room temperature, take out the sample, wash it thoroughly with deionized water, filter it with suction, and dry it to obtain the fluorine-modified boron carbon ...

Embodiment 3

[0036] Completely dissolve 2g of boron oxide, 4g of urea, and 0.6g of glucose in 40-50ml of deionized water. After evaporating all the water at 75°C under normal pressure, place the resulting mixture in a corundum porcelain boat, and then place it in In a horizontal high-temperature tube furnace, the temperature was raised to 1250 °C at a rate of 5 °C / min in an ammonia atmosphere, and then kept for 5 h. After the sample was taken out, it was washed with 0.1 mol / L dilute hydrochloric acid, centrifuged, and dried to obtain Graphite phase boron carbon nitrogen powder; mix potassium fluoride with the obtained boron carbon nitrogen powder at a mass ratio of 0.3:1, grind them evenly, place them in a muffle furnace, and heat up to 400°C at a rate of 5°C / min in an air atmosphere , and then keep it warm for 3 h; after cooling to room temperature, take out the sample, wash it thoroughly with deionized water, filter it with suction, and dry it to obtain the fluorine-modified boron carbon ...

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Abstract

The invention discloses a fluorine modified boron carbonitride photocatalytic material and application thereof to efficient reduction of carbon dioxide, and belongs to the field of photocatalytic materials. The fluorine modified boron carbonitride photocatalytic material is prepared from graphite phase boron carbonitride synthesized through high-temperature polymerization reaction and potassium fluoride jointly through heat treatment reaction; the fluorine modified boron carbonitride photocatalytic material is an inorganic nonmetal copolymerization material; the characteristics of high stability, chemical corrosion resistance, high temperature resistance, high heat conductivity, visible-light response and the like are realized; the fluorine modified boron carbonitride photocatalytic material can catalyze and reduce carbon dioxide gas under the driving of visible light; the problems of high cost, instability, environment pollution and the like caused by the reason that the existing catalytic material for photocatalytic reduction on carbon dioxide mainly uses (noble) metal oxide (sulfide) as major materials are solved; the preparation method is simple; the raw materials are cheap andcan be easily obtained; the environment pollution is low; the large-scale industrial production is easy; obvious economic and social benefits are realized.

Description

technical field [0001] The invention belongs to the field of photocatalytic materials, in particular to a fluorine-modified boron carbon nitrogen photocatalytic material and its application in efficient reduction of carbon dioxide. Background technique [0002] At present, the recycling of carbon resources has been widely concerned by the international community. Using light energy to drive the conversion of carbon dioxide to realize the storage of low-density solar energy to high-density chemical energy is considered to be an ideal green and environmentally friendly way, which can not only alleviate the greenhouse effect, but also deal with the current energy crisis. At present, the research on catalytic materials for photocatalytic carbon dioxide reduction mainly focuses on semiconductors such as metal oxides or sulfides, but these metal compounds often have some problems such as low efficiency, non-response to visible light, chemical instability, etc., and the cost of met...

Claims

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Application Information

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IPC IPC(8): B01J27/24C01B32/40
CPCC01B32/40B01J27/24B01J35/39
Inventor 黄彩进邢芳舒刘秋文
Owner FUZHOU UNIV
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